I'm hoping to use one of these in my sons apartment but having a little trouble wrapping my brain around setting it up.? First question is, is there any benefit to connecting via Ethernet over cresnet?? If I use cresnet, i only need a 10 inch long cable direct to the processor.? There will only be 4 sources accessed by 2 TV's. (Living room and bed room). I don't need audio breakaway.? I'm missing something here.? Looking at it in program mode, I'm not seeing what initiates the input and which output you want to send it to.